GCP Emulator UI

A modern web interface for managing Google Cloud Platform emulator services 🎮

demo.mp4

Supports amd64 and arm64 container images

Disclaimer

This is an unofficial third-party application and is not affiliated with, endorsed by, or sponsored by Google LLC or Google Cloud Platform.

Features

Supported Emulators

• Google Cloud Pub/Sub (gcloud)

  • Create, view, and manage Pub/Sub topics
  • Handle subscriptions with pull/push configurations
  • Publish messages with attributes and template variables
  • Import/export topics, subscriptions, and message templates

• Google Cloud Storage (fake-gcs)

  • Create, view, and manage Storage buckets
  • Support drag'n'drop files and folders
  • Import/export bucket configurations

• Google Firestore (gcloud)

  • Create, view, and manage Collections
  • Document CRUD operations with field editing
  • Multiple databases support
  • Import/export collections and documents

• Google Firestore (datastore-mode) (gcloud)

  • Create, view, and manage entities across namespaces and databases
  • Query/Read operations on named databases
  • Import/export functionality

Quick Start

Use Docker Compose:

git clone git@github.com:drehelis/gcp-emulator-ui.git
cd gcp-emulator-ui

docker-compose up

Or start individual container:

# Start Google Pub/Sub emulator
docker run \
   --rm \
   --publish 8085:8085 \
   gcr.io/google.com/cloudsdktool/google-cloud-cli:emulators sh -c 'gcloud beta emulators pubsub start --host-port=0.0.0.0:8085'

# Start Google Firestore emulator
docker run \
   --rm \
   --publish 8086:8086 \
   gcr.io/google.com/cloudsdktool/google-cloud-cli:emulators sh -c 'gcloud beta emulators firestore start --host-port=0.0.0.0:8086'

# Start Google Firestore datastore-mode emulator
docker run \
   --rm \
   --publish 8087:8087 \
   gcr.io/google.com/cloudsdktool/google-cloud-cli:emulators sh -c 'gcloud beta emulators firestore start --database-mode=datastore-mode --host-port=0.0.0.0:8087'

# Start fake-gcs emulator
docker run \
   --rm \
   --publish 4443:4443 \
   --env PUBSUB_EMULATOR_HOST="host.docker.internal:8085" \
   fsouza/fake-gcs-server -scheme http

# Now start the UI
docker run \
   --rm \
   --env PUBSUB_EMULATOR_URL="host.docker.internal:8085"    \
   --env FIRESTORE_EMULATOR_URL="host.docker.internal:8086" \
   --env DATASTORE_EMULATOR_URL="host.docker.internal:8087" \
   --env DATASTORE_FILE_SERVER_URL="host.docker.internal:9999" \
   --env STORAGE_EMULATOR_URL="host.docker.internal:4443"   \
   --publish 9090:80 \
   ghcr.io/drehelis/gcp-emulator-ui:main

Browse to http://localhost:9090

Runtime Config (/config.json)

The UI can load optional runtime settings from /config.json at startup. This file is intended for container deployments where you want to inject configuration without rebuilding the app.

Currently supported runtime fields:

{
  "pubsub": {
    "pubsubPreConfiguredMsgAttr": {
      "key": "value"
    }
  }
}

To set pubsubPreConfiguredMsgAttr, provide a JSON object in the PUBSUB_PRE_CONFIGURED_MSG_ATTR environment variable when starting the container. Example:

docker run \
   --rm \
   --env PUBSUB_PRE_CONFIGURED_MSG_ATTR='{"source":"local","env":"dev"}' \
   --publish 9090:80 \
   ghcr.io/drehelis/gcp-emulator-ui:main

Development Setup

1. Clone and install dependencies

   git clone git@github.com:drehelis/gcp-emulator-ui.git
   cd gcp-emulator-ui
   code .
   (run in devcontainer)
   
   bun install

2. Configure environment

   cp -v .env.example .env
   # Edit .env with your settings

3. Start the development server

   bun run dev

4. Open your browser

   • Navigate to http://localhost:5173

Configuration

Environment Variables

Variable	Default	Description
VITE_PUBSUB_BASE_URL	/pubsub	Pub/Sub emulator endpoint
VITE_FIRESTORE_BASE_URL	/firestore	Firestore emulator endpoint
VITE_DATASTORE_BASE_URL	/datastore	Firestore datastore-mode emulator endpoint
VITE_STORAGE_BASE_URL	/storage	Storage emulator endpoint
VITE_FILE_SERVER_BASE_URL	/fs	File server endpoint for Datastore import/export operations

Development

Project Structure

src/
├── api/           # API client configurations
├── assets/        # Static assets and styles
├── components/    # Reusable Vue components
├── composables/   # Vue composition functions
├── layouts/       # Page layout components
├── plugins/       # Vue plugins and global configurations
├── router/        # Vue Router configuration
├── stores/        # Pinia state management
├── types/         # TypeScript type definitions
├── utils/         # Utility functions and helpers
└── views/         # Page components organized by feature

Stack

Core Framework

• Vue 3 - Progressive JavaScript framework
• TypeScript - Type-safe development
• Vite - Fast build tool and dev server
• Tailwind CSS - Utility-first CSS framework

Credits

Icons

This project uses Heroicons - a set of free MIT-licensed high-quality SVG icons created by Tailwind Labs.

• License: MIT
• Repository: github.com/tailwindlabs/heroicons
• Copyright: © 2020 Refactoring UI Inc.

All icons are used in accordance with the MIT License. See Heroicons License for details.

Feedback and Contributions

Feedback and contributions are welcome! Please feel free to:

• Open an issue for bug reports or feature requests
• Submit a pull request for bug fixes or new features

License

This project is licensed under the MIT License.